Pls show examples where increasing brightness in post better than increasing ISO.

Started Oct 1, 2013 | Discussions thread
Atgard Regular Member • Posts: 432
Re: Preferred compromise

bobn2 wrote:

Steen Bay wrote:

Let's say that in low light I really don't want to use a slower shutter speed than 1/60 sec, but maybe that'll require ISO 3200 to get a 'properly exposed' image with the correct/preferred brightness, and then I'll maybe choose 1/30, ISO 1600 as the preferred compromise instead.

Why would you? The extra camera shake will damage your image more than the extra noise, guaranteed.

I think it depends. Unless you're shooting an object moving at a constant speed, you're never exactly sure what shutter speed you need to freeze the action (with people, for example). You should have a general idea, but you can shoot 5 shots at the same shutter speed and 2 might have no motion blur, while 3 do. Someone may move more quickly, or not move very much in that fraction of a second.

Often, I will try to get away with a lower ISO (for less noise) with a slightly slower shutter speed than I think I need, and take several shots, hoping to get one sharp one.

I would rather have 1 sharp shot at ISO 800 and 4 that I throw away due to motion blur, than just 1 sharp shot at ISO 1600.

I think your argument that setting ISO first always "underexposes" is assuming that for every shot, you can know the exact shutter speed you need in advance, and I think in reality it doesn't usually work quite that way. I think there will be times you end up with "extra" or "wasted" shutter speed and other times your subject moves more quickly than normal.

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